objective -c如何保存变量名称和值

Question

我有五个整数.我将所有整数添加到mutableArray并将其洗牌.

int A = 1;
int B = 2;
int C = 3;
int D = 4;
int E = 5;

myArray = [2,1,3,5,4]; //shuffled array

是否有可能获得数组中每个整数的变量名？请帮我.

Answer 1

在这种情况下,NSDictionary是可行的,您可以存储变量名称及其值:

NSDictionary *dict = [NSDictionary dictionaryWithObjectsAndKeys:@"1",@"A",@"2",@"B",@"3",@"C",@"4",@"D",@"5",@"E", nil];

现在您可以获取字典的所有键,如:

NSArray *arr = [dict allKeys];      // which will be [A,B,C,D,E]

您可以获取这些键的值,如:

for (int i=0; i<arr.count; i++) {
        NSLog(@"%@",[dict valueForKey:[arr objectAtIndex:i]]);  // Will print 1,2,3,4,5
    }